net: Only honor ifindex in IP_PKTINFO if non-0

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Only allow ifindex from IP_PKTINFO to override SO_BINDTODEVICE settings
if the index is actually set in the message.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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David Ahern 2018-02-16 11:03:03 -08:00 • committed by David S. Miller

parent b2d12101bf

commit 1cbec07649

1 changed files with 4 additions and 2 deletions

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6

net/ipv4/ip_sockglue.c

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